The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1987
Filed:
Aug. 27, 1984
Applicant:
Inventors:
Haruo Shiba, Saku, JP;
Yoshiya Sakata, Saku, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G01B / ;
U.S. Cl.
CPC ...
360132 ; 360137 ; 242199 ;
Abstract
A magnetic tape cartridge is provided with a pressing spring secured to a cartridge to press a spring-contact projection formed at the center of the upper part of a reel. The pressing spring includes a reel-contacting part formed at its inner part, a spring-functioning part holding the reel-contacting part and a base plate connected to a root portion of the spring-functioning part. The reel-contacting part presses the spring-contact projection of the reel downwardly so that a pressing force acts on the reel in its axial direction.